27 Jul 2016

Debian 8 'Jessie' XFCE mute button fix

I noticed that on several Dell laptops that I’ve upgraded to Debian 8
‘Jessie’ with the XFCE desktop environment, that the keyboard mute
button had stopped working. Or rather, the button mutes the audio
just fine, but pressing it again doesn’t actually unmute again. To
get audio back, you have to manually invoke alsamixer and unmute
from there.